Answer:
it would take 6 hours,
Step-by-step explanation:
it is raining 2 inches per hour, so adding on 2 inches for each hour you get 6 hours.
Answer:
It will take 3.6 hours to wax a car if they work together.
Step-by-step explanation:
Calvin one hour work = 
Alvin one hour work = 
To find out how much they can do together per hour,
We have to add and
= 
= 
--------------(1)
They can do of the job per hour.
If "t" is the time taken to finish the job together, then one hour work
------------------------(2)
Now we have to find the value of "t" by setting the expression (1) and (2) equal.
It can solve by flipping the equation;
t = 3.6 hours
It will take 3.6 hours to wax a car if they work together.
The slopes of lines perpendicular to each other are opposite reciprocals. So, if you are given that the slope of a line is 3 and need to find the slope of a line perpendicular to that line, you'd flip that number around and negate it, leaving you with -1/3.
To find the slope of the given line, first get it into slope-intercept form (y - mx + b, where m is the slope and b is the y-intercept).
3y = -4x + 2
y = -4/3x + 2/3
The slope is -4/3. To find the slope of a perpendicular line, find its opposite reciprocal. It is 3/4.
Answer:
3/4 (the first option)
As <GNJ & < JNK form a striaght angle
And < JNK = 90°
So <GNJ = 90°
So <GNH + <HNJ = 90°
So GNH & HNJ are complimentary is true.
As JNK and KNL do not form a straight angle.
So <JNK +< KNL is not equal to 180°.
Hence JNK and KNL are supplementary is not true.
As <KNM & < JNK form a straight angle
And < JNK = 90°
So <KNM = 90°
So <KNL + <LNM = 90°
So KNL & LNM are complimentary is true.
As HNL makes a straight angle
And so
mHNK + mKNL = 180° is true
As MNG itself is 90°
So
<MNG + <GNH cannot be 90° hence this is false.
